Shape coexistence studied in 182,184Hg via the β decay of 182,184Tl

Abstract

The β +/EC decay of 182,184Tl to excited states in the daughter nuclei 182,184Hg has been investigated at the CERN on-line isotope mass separator facility. In both Tl nuclei two β-decaying states were observed. In the case of 184Tl, narrow-band laser spectroscopy could be used to disentangle the decay of both isomers. In 182Hg a precise energy of 335 (1) keV for the 0+ 2 state was measured together with its feeding from a tentatively proposed 2+ 3 state at 973 keV. Large conversion coefficients for the 2 + + 2 1 → 2 transition in 182,184Hg were measured to be 7.2 (13) and 14.2 (36), respectively, evidencing a strong E0 component.

Metadata

Item Type:	Article
Authors/Creators:	Rapisarda, E Andreyev, A N https://orcid.org/0000-0003-2828-0262 Antalic, S Barzakh, A Cocolios, T E Darby, I G Groote, R De Witte, H De Diriken, J Elseviers, J Fedorov, D Fedosseev, V N Ferrer, R Huyse, M Kalaninová, Z Köster, U Lane, J Liberati, V Lynch, K M Marsh, B A Molkanov, P L Pauwels, D Procter, T J Radulov, D Sandhu, K Seliverstov, M D (ms1330@york.ac.uk) Beveren, C Van Bergh, P Van den Duppen, P Van Venhart, M Veselský, M Wrzosek-Lipska, K
Copyright, Publisher and Additional Information:	© 2017 IOP Publishing Ltd. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.
Keywords:	Radioactive nuclei,shape coexistence,β decay,γ spectroscopy
Dates:	Published: 31 May 2017 Accepted: 6 May 2017
Institution:	The University of York
Academic Units:	The University of York > Faculty of Sciences (York) > Physics (York)
Depositing User:	Pure (York)
Date Deposited:	05 Jun 2017 16:15
Last Modified:	16 Oct 2024 13:49
Published Version:	https://doi.org/10.1088/1361-6471/aa6bb6
Status:	Published
Refereed:	Yes
Identification Number:	10.1088/1361-6471/aa6bb6
Related URLs:	http://www.scopus.com/inward/record.url?... http://stacks.iop.org/0954-3899/44/i=7/a...
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:117328

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Shape coexistence studied in 182,184Hg via the β decay of 182,184Tl

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